This is an excerpt from NSCA's Essentials of Sport Science by NSCA -National Strength & Conditioning Association, Duncan N. French & Lorena Torres-Ronda.

This Kinetic Select from Developing the Core reviews the effects of muscle activity when performing exercises on unstable surfaces.

Maura Bergan, Associate Professor of Exercise Science and Sports Studies at Springfield College, talks to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about social media in the exercise science field, key career decisions, and qualities and values that help you as a coach.

The variables of an NBA season constantly change, which requires strength and conditioning coaches to adjust accordingly. The success of a program is often influenced by the coach’s ability to combine strength and conditioning principles with common sense and the ability to adjust to the schedule.

Adam Fletcher, Head Strength and Conditioning Coach for men’s basketball at the University of Illinois, talks to the NSCA Coaching Program Manager, Eric McMahon, about the impact of the Coaches vs. COVID-19 webinars to support the service community and build the strength and conditioning community. Topics under discussion include his journey from an accounting major to strength coach, how vital it is to get to know the sport coaches, and how he seeks to be a positive role model as he works alongside his wife. Find Adam on Twitter: @Adam_Fletcher41 or Instagram: @coach_fletch | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

Two factors that determine running speed are stride cadence and stride length. Because athletes propel themselves forward only when their foot is in contact with the ground, the stance phase of the running stride should be the focus of speed enhancement programs.

Kelly Dormandy, Assistant Athletics Director for Sports Performance at Loyola Marymount University and Head Strength Coach for the Los Angeles Sparks Women’s National Basketball Association (WNBA) team, talks to the NSCA Coaching Program Manager, Eric McMahon, about championship culture. Topics under discussion include constantly seeking new challenges, training WNBA athletes, and being proactive about networking in the field. Find Kelly on Instagram: @kdormandy | Find Eric on Instagram: @ericmcmahoncscs or Twitter: @ericmcmahoncscs

The purpose of this article is to provide the strength and conditioning coach with a template on how to integrate the clean and power clean into athletic training programs.

Courteney Benjamin and Yasuki Sekiguchi, from the Korey Stringer Institute, talk to the NSCA Head Strength and Conditioning Coach, Scott Caulfield, about preventing sudden death in the heat and how coaches can plan ahead, create, and respond with an emergency action plan. Find the Korey Stringer Institute on Twitter: @K_S_Institute | Find Scott on Instagram: @coachcaulfield

This article examines using the sled as a dynamic correspondence exercise for increasing on-ice acceleration.